AM06-26-004 多翼ファンの内部流動特性に基づく比騒音レベルの解析(流体機械(1),一般講演)

概要

論文の詳細を見る
In this study, an analytical theory for specific noise based on internal flow of a forward curved fan is proposed; moreover, the specific noise of the fan having an impeller with a different number of blades was discussed. The total pressure coefficient of the fan having 120 blades (MF120) became lower than the fan having 40 blades (MF40). On the other hand, the noise level of MF120 became 3.8dB smaller than MF40 because the relative velocity was reduced by the slip. It was estimated by analyzing internal flow that the specific noise of MF120 was 2.3dB smaller than MF40.
日本流体力学会の論文
2006-09-05